alluvial fan :
- n a fan-shaped deposit where a fast flowing stream flattens out
News & Articles
- Bad Astronomy: Martian Flash Flood
Phil Plait's Bad Astronomy blog flags a photo from the UA's HiRISE camera aboard the Mars Reconnaissance Orbiter to note that it may have rained on Mars a long time ago: This fan is on the inside of the rim of Mojave Crater, a 60-kilometer-wide (40-mile-wide) impact crater near the equator of Mars. The structure matches an Earthly alluvial fan almost perfectly.… [ Read more ] [ Subscribe to the ...
Sept. 5, 2013 - Tucson Weekly